CA2091270A1 - A cannula - Google Patents
A cannulaInfo
- Publication number
- CA2091270A1 CA2091270A1 CA002091270A CA2091270A CA2091270A1 CA 2091270 A1 CA2091270 A1 CA 2091270A1 CA 002091270 A CA002091270 A CA 002091270A CA 2091270 A CA2091270 A CA 2091270A CA 2091270 A1 CA2091270 A1 CA 2091270A1
- Authority
- CA
- Canada
- Prior art keywords
- cannula
- unit
- point
- cutting edge
- needle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3286—Needle tip design, e.g. for improved penetration
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Anesthesiology (AREA)
- Vascular Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Materials For Medical Uses (AREA)
- Surgical Instruments (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Saccharide Compounds (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
An intravenous cannula (1) with a bevelled point (2) is designed so as to make the cutting edge (3) of point (2) extend along the portion of the cannula (1) wall which is intended to lie furthest away from the skin (8) in use. The cutting edge (3) is preferably placed along the light opening (6) of cannula (5).
Description
}~ CAN~.
The present invention relate~ to a cannula, preferably an intravenous cannula of the k:Lnd that has a bevelled point forming a cutting edge.
At present, there is a variety of cannulae on the marke~, however, they only differ in det:ails as regards connection with tubing, medicament wells, and the like.
It is co~mor. to all m.2se car.r.ulae that th~ cuttlng ed~e of the cannula is pro~ide~ alor.g a portlon of the canr.ul2 clrcumference a~c, also, alor.g the portlon of the cannula cl~cumference ~.ic~. is intence~ to lie closest to the skln ~hen in use.
~'lth correc~ use an~ correct equipment co~,plications ~ill gen~rally be avoide~ ~-her., especi~lly perlpheral venes are p~nctured and car.r.ula-ec, no~e-er. some cases of co~plicat-lons or accldents ~ill be una~oldable.
, If the cannula ls lnserted lnto the vene ln a ~oo steep or vlgorous manner, tkere is a h~zard of Ihe opposlte ven~ ~all belng punctured as ~ell. Such a puncture may, ln t~rn, cause blood to ooze fro~ the ~-er.e to the tissue ~ith a consequent haematoma.
Also, medlcaments may be ir.Jected into areas outslde the vene ln stead of ir.~G the blood strea¢, because the introd-uced plastlc tube is ~ro~lded adJacent to the unlntendeci place of punctur~. Furthermore, the lnserted plastic tube ~a~ unlntentlonally be perforated by unlntended movement of .
t~.e cannula lr. t~.e tu~e lr. cor~..ectlon ~ remo~al.
As examples o~ known technology, we refer to EP 0 238 419 ~3 and EP 0 271 775 A3, DE-OS 24 34 618, GP-PS 1 298 707, and US-PS 2 74a 769.
A11 cited documents disclose straight cannulae or cannulae which are ~lightly arched at the point, with the cutting edge of the cannula extending along the periphery of the oannulae tube, and with the cannula, additionally, being equipped with au,~- _ari ~pe li~5~ C~ U' ~
-.".
to provide a certain turbulence when injecting.
There are also cannulae on the market the cutting edge of which i9 displaced by grinding to a point between the periphery and the light opening.
It is an object of the present invention further to improve the prior art as it ha3 been described hereinabove and the invention relates therefore to an intravenous cannula unit ~0 comprising a catheter unit and an insertion needle unit, said catheter unit, in addition to the m~dicament well, attachment flaps and connectiny means, comprising a ~lexihle catheter tube and said insertion needle unit comprising a needle which éxtends through the catheter tube and projects from the free 15 end thereof, and the intra~enous unit is characterized in that the inser~ion needle i9 turned to and fixed in a position in the intravenous cannula unit 90 that the cutting edge on the needle point extends along the portion of the light opening of the cannula which is farthest away from the skin and vein wall 20 prior to penetrating therethrough.
Experiments proved that the cannula according to the invention results in a smaller penetration or wound area than known cannulae.
2s Thi~q was confirmed in tests on patients, up to 90 ~ of whom said on inquiry that piercing with the cannula according to the invention caused less discomfort than piercing with cannulae of known technology. The tests were made with masked cannulae, 30 one of each kind and one on each arm of the same patient.
Another advantage which is achieved with the cannula according to the invention is that the cannula opening will face the stream when inserted into the vein, which will provide a more 35 rapid "backflow" and, thus, confirmation that the cannu].a is in place.
:` ' 3 Other advantages of the invention will appear from the : following disclosure with reference to the accompanying drawing~, in which:
Figure 1 shows a known cannula according to US-PS 4 231 367 with a cannula tube 1 and a point 2, Figure 2 shows an enlarged portion or the point area or Figure 1:
Figure 3 shows a convertional cannula in a position for penetration; .
Figure 4 shows the situation in case of unintentional penetration of the opposite ~ene wall;
Figure 5 shows the unintended situation occuring when the cannula tube is wrongly placed; ;
20 Figure 6 shows an unintentional perforation of the cannula tube by the pont of the cannula;
Figure 7 shows the general position of the point o~ the cannula according to the inventio~ (compare with Figure 2);
Figure 8 corre~pond~ to Figure 3, but shows the invention;
Figure 9 basically corresponds to Figure 4, but show3 the : 30 advantage achieved by the invention;
Figure 10 and Figure 11 show a pre~erred embodiment of the invention (compare with Figure 7); ';
Figure 1~ shows the preferred embodimen~ and corre~pond~ to Figure 9;
~ ~' Figure 13 shows the preferred embodiment and correspond~ to Figure 6;
As mentioned above all cannulae on the market at present are of the kind as shown in Figure 1, designed as shown in Figure 2 with the edge of the point being provided in the part of the cannula wall that i9 intended to lie in contact with the skin when used.
This is shown diagrammatically in Figure 2, and the accidents that may occur when the cannula is used are illustrated in Figures 3 - 6.
In Figure 3 cannula 1 with point area 2 and the associated 75 plastic tube 7 i9 positioned to penetrate the skin a and ~ei~
9 by also piercing one vein wall 9b.
. . .
Figure 4 shows what may happen if the cannula is inserted too steeply or forcefully. The opposite vein wall 9c i9 punctured, 20 which will cause a hazaxd of blood oozing out of the vein with a consequent haematoma. The patient, thus, must be pierced once more.
- In use, blood and medicament may then ooze out o~ opening 9c, ~5 30 tha ~here i9 also an accumulation of liquid outside the vein with ~urther hazard o~ injuries to tissue and necrosis, see Figure 5.
Figure 6 shows a situation which may occur due to the fact that 30 the point of the cannula is moved inside the cannula tube, the latter may be punctured at 7a.
A9 mentioned above, one of the objects o~ the invention i9 to remedy the shortcomings of known technology, and according to 35 the general design of ~his invention, this is achieved in that the cutting edge 3 of the cannula point 2 along the portion of the cannula wall, when in use, i~ intended to ~ace away ~rom 1~
the skin and is fixed to the intravenou~ cannula in the fixed position prior to penetrating the vein.
Generally, the cutting edge i9 achieved by simple angular cutting of the cannula, however it i9 possible both on conventional cannulae, however it i3 possible both on conventional cannulae and on cannulae according to the invention to sharpen the cutting cannula edge, as indicated in Figure 2, so as to provide a regular point 4 instead of the present oval arch.
.
The cannula according to the invention is illustrated in Figures 8 and 9 with Figure 8 corresponding to Figure 3 immediately before the skin i9 punctured.
In Figure 9 the situation shown is immediately after cannula 1 with plastic tube 7 ha~ penetrated the skin 8 and one vein --wall 9a. It will appear that by placing the cutting edge according to the invention a more flat "underside" of the point 20 area 2 is achieved, which will ~ubstantially reduce the hazard of puncturing the other vein wall 3b, as shown in Figure 4.
The embodiment shown in Figures 7 - 9 represe~ts an essential improvement as compared to known technology, as illustrated in 25 Figures 3 - 6.
.. . .
There is, however, a certain though strongly reduced hazard of unintentional penetration of a vein wall upon insertion of the cannula, also in connection with the object of the present 30 invention. This i9 shown directly in Figure 4, but even after successful lnsertion a puncture may occur on the side where the point of the cannula i5 placed.
The preferred embodiment of the invention, as mentioned above, 35 should solve this problem too, and this is the case with the embodiment generally shown in Figure 10.
It i9 achieved by reshaping the point area 2 to move the cutting edge 3 of the cannula from the outer diameter to the inner diameter or light opening, indicated by numeral 6 in ; Figures 7 and 10.
s : By moving the cutting edge 3 the ha2ard of unintentionally : puncturing the vein wall i9 substantially reduced, as there i3 provided a further ~urface 11 a9 will appear, e.g. from Figure 12. Said surface may 31ide against the vein wall and preventing the point from getting caught in the vein wall and unintentionally puncturing the wall.
According to the invention as disclosed above a cannula is achieved in a ~imple and inexpen~ive manner, and safety in operation and use i9 enhanced without ~acriFicing the safety of known cannulae and, additionally, without causing essentially increased costs.
The invention, thus, represents an essential improvement as 20 regards operation and use of cannulae in connection with puncturing and cannulation of veins.
':
The present invention relate~ to a cannula, preferably an intravenous cannula of the k:Lnd that has a bevelled point forming a cutting edge.
At present, there is a variety of cannulae on the marke~, however, they only differ in det:ails as regards connection with tubing, medicament wells, and the like.
It is co~mor. to all m.2se car.r.ulae that th~ cuttlng ed~e of the cannula is pro~ide~ alor.g a portlon of the canr.ul2 clrcumference a~c, also, alor.g the portlon of the cannula cl~cumference ~.ic~. is intence~ to lie closest to the skln ~hen in use.
~'lth correc~ use an~ correct equipment co~,plications ~ill gen~rally be avoide~ ~-her., especi~lly perlpheral venes are p~nctured and car.r.ula-ec, no~e-er. some cases of co~plicat-lons or accldents ~ill be una~oldable.
, If the cannula ls lnserted lnto the vene ln a ~oo steep or vlgorous manner, tkere is a h~zard of Ihe opposlte ven~ ~all belng punctured as ~ell. Such a puncture may, ln t~rn, cause blood to ooze fro~ the ~-er.e to the tissue ~ith a consequent haematoma.
Also, medlcaments may be ir.Jected into areas outslde the vene ln stead of ir.~G the blood strea¢, because the introd-uced plastlc tube is ~ro~lded adJacent to the unlntendeci place of punctur~. Furthermore, the lnserted plastic tube ~a~ unlntentlonally be perforated by unlntended movement of .
t~.e cannula lr. t~.e tu~e lr. cor~..ectlon ~ remo~al.
As examples o~ known technology, we refer to EP 0 238 419 ~3 and EP 0 271 775 A3, DE-OS 24 34 618, GP-PS 1 298 707, and US-PS 2 74a 769.
A11 cited documents disclose straight cannulae or cannulae which are ~lightly arched at the point, with the cutting edge of the cannula extending along the periphery of the oannulae tube, and with the cannula, additionally, being equipped with au,~- _ari ~pe li~5~ C~ U' ~
-.".
to provide a certain turbulence when injecting.
There are also cannulae on the market the cutting edge of which i9 displaced by grinding to a point between the periphery and the light opening.
It is an object of the present invention further to improve the prior art as it ha3 been described hereinabove and the invention relates therefore to an intravenous cannula unit ~0 comprising a catheter unit and an insertion needle unit, said catheter unit, in addition to the m~dicament well, attachment flaps and connectiny means, comprising a ~lexihle catheter tube and said insertion needle unit comprising a needle which éxtends through the catheter tube and projects from the free 15 end thereof, and the intra~enous unit is characterized in that the inser~ion needle i9 turned to and fixed in a position in the intravenous cannula unit 90 that the cutting edge on the needle point extends along the portion of the light opening of the cannula which is farthest away from the skin and vein wall 20 prior to penetrating therethrough.
Experiments proved that the cannula according to the invention results in a smaller penetration or wound area than known cannulae.
2s Thi~q was confirmed in tests on patients, up to 90 ~ of whom said on inquiry that piercing with the cannula according to the invention caused less discomfort than piercing with cannulae of known technology. The tests were made with masked cannulae, 30 one of each kind and one on each arm of the same patient.
Another advantage which is achieved with the cannula according to the invention is that the cannula opening will face the stream when inserted into the vein, which will provide a more 35 rapid "backflow" and, thus, confirmation that the cannu].a is in place.
:` ' 3 Other advantages of the invention will appear from the : following disclosure with reference to the accompanying drawing~, in which:
Figure 1 shows a known cannula according to US-PS 4 231 367 with a cannula tube 1 and a point 2, Figure 2 shows an enlarged portion or the point area or Figure 1:
Figure 3 shows a convertional cannula in a position for penetration; .
Figure 4 shows the situation in case of unintentional penetration of the opposite ~ene wall;
Figure 5 shows the unintended situation occuring when the cannula tube is wrongly placed; ;
20 Figure 6 shows an unintentional perforation of the cannula tube by the pont of the cannula;
Figure 7 shows the general position of the point o~ the cannula according to the inventio~ (compare with Figure 2);
Figure 8 corre~pond~ to Figure 3, but shows the invention;
Figure 9 basically corresponds to Figure 4, but show3 the : 30 advantage achieved by the invention;
Figure 10 and Figure 11 show a pre~erred embodiment of the invention (compare with Figure 7); ';
Figure 1~ shows the preferred embodimen~ and corre~pond~ to Figure 9;
~ ~' Figure 13 shows the preferred embodiment and correspond~ to Figure 6;
As mentioned above all cannulae on the market at present are of the kind as shown in Figure 1, designed as shown in Figure 2 with the edge of the point being provided in the part of the cannula wall that i9 intended to lie in contact with the skin when used.
This is shown diagrammatically in Figure 2, and the accidents that may occur when the cannula is used are illustrated in Figures 3 - 6.
In Figure 3 cannula 1 with point area 2 and the associated 75 plastic tube 7 i9 positioned to penetrate the skin a and ~ei~
9 by also piercing one vein wall 9b.
. . .
Figure 4 shows what may happen if the cannula is inserted too steeply or forcefully. The opposite vein wall 9c i9 punctured, 20 which will cause a hazaxd of blood oozing out of the vein with a consequent haematoma. The patient, thus, must be pierced once more.
- In use, blood and medicament may then ooze out o~ opening 9c, ~5 30 tha ~here i9 also an accumulation of liquid outside the vein with ~urther hazard o~ injuries to tissue and necrosis, see Figure 5.
Figure 6 shows a situation which may occur due to the fact that 30 the point of the cannula is moved inside the cannula tube, the latter may be punctured at 7a.
A9 mentioned above, one of the objects o~ the invention i9 to remedy the shortcomings of known technology, and according to 35 the general design of ~his invention, this is achieved in that the cutting edge 3 of the cannula point 2 along the portion of the cannula wall, when in use, i~ intended to ~ace away ~rom 1~
the skin and is fixed to the intravenou~ cannula in the fixed position prior to penetrating the vein.
Generally, the cutting edge i9 achieved by simple angular cutting of the cannula, however it i9 possible both on conventional cannulae, however it i3 possible both on conventional cannulae and on cannulae according to the invention to sharpen the cutting cannula edge, as indicated in Figure 2, so as to provide a regular point 4 instead of the present oval arch.
.
The cannula according to the invention is illustrated in Figures 8 and 9 with Figure 8 corresponding to Figure 3 immediately before the skin i9 punctured.
In Figure 9 the situation shown is immediately after cannula 1 with plastic tube 7 ha~ penetrated the skin 8 and one vein --wall 9a. It will appear that by placing the cutting edge according to the invention a more flat "underside" of the point 20 area 2 is achieved, which will ~ubstantially reduce the hazard of puncturing the other vein wall 3b, as shown in Figure 4.
The embodiment shown in Figures 7 - 9 represe~ts an essential improvement as compared to known technology, as illustrated in 25 Figures 3 - 6.
.. . .
There is, however, a certain though strongly reduced hazard of unintentional penetration of a vein wall upon insertion of the cannula, also in connection with the object of the present 30 invention. This i9 shown directly in Figure 4, but even after successful lnsertion a puncture may occur on the side where the point of the cannula i5 placed.
The preferred embodiment of the invention, as mentioned above, 35 should solve this problem too, and this is the case with the embodiment generally shown in Figure 10.
It i9 achieved by reshaping the point area 2 to move the cutting edge 3 of the cannula from the outer diameter to the inner diameter or light opening, indicated by numeral 6 in ; Figures 7 and 10.
s : By moving the cutting edge 3 the ha2ard of unintentionally : puncturing the vein wall i9 substantially reduced, as there i3 provided a further ~urface 11 a9 will appear, e.g. from Figure 12. Said surface may 31ide against the vein wall and preventing the point from getting caught in the vein wall and unintentionally puncturing the wall.
According to the invention as disclosed above a cannula is achieved in a ~imple and inexpen~ive manner, and safety in operation and use i9 enhanced without ~acriFicing the safety of known cannulae and, additionally, without causing essentially increased costs.
The invention, thus, represents an essential improvement as 20 regards operation and use of cannulae in connection with puncturing and cannulation of veins.
':
Claims
WE CLAIM:
An intravenous cannula unit comprising a catheter unit and an insertion needle unit, said catheter unit, in addition to a medicament well, attachment flaps and connecting means, comprising a flexible catheter tube (7) and said insertion needle unit comprising a needle (1) which extends through said catheter tube (7) and projects from the free end thereof, characterized in that the insertion needle is turned to and fixed in a position on the intravenous cannula unit in such a way that the cutting edge (3) on the needle point (2) extends along the portion of the light opening (6) of the cannula (1) which is farthest from the skin (8) and the vein wall (9A) prior to penetrating therethrough.
An intravenous cannula unit comprising a catheter unit and an insertion needle unit, said catheter unit, in addition to a medicament well, attachment flaps and connecting means, comprising a flexible catheter tube (7) and said insertion needle unit comprising a needle (1) which extends through said catheter tube (7) and projects from the free end thereof, characterized in that the insertion needle is turned to and fixed in a position on the intravenous cannula unit in such a way that the cutting edge (3) on the needle point (2) extends along the portion of the light opening (6) of the cannula (1) which is farthest from the skin (8) and the vein wall (9A) prior to penetrating therethrough.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO903910A NO173261C (en) | 1990-09-07 | 1990-09-07 | Intravenously! Skanyle |
| NO903910 | 1990-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2091270A1 true CA2091270A1 (en) | 1992-03-08 |
Family
ID=19893478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002091270A Abandoned CA2091270A1 (en) | 1990-09-07 | 1991-07-24 | A cannula |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP0547068B1 (en) |
| JP (1) | JP2554299B2 (en) |
| AT (1) | ATE143271T1 (en) |
| AU (1) | AU8319791A (en) |
| CA (1) | CA2091270A1 (en) |
| DE (1) | DE69122401T2 (en) |
| DK (1) | DK0547068T3 (en) |
| ES (1) | ES2091938T3 (en) |
| FI (1) | FI930985A7 (en) |
| GR (1) | GR3021281T3 (en) |
| HK (1) | HK51297A (en) |
| NO (1) | NO173261C (en) |
| RU (1) | RU2114640C1 (en) |
| WO (1) | WO1992004062A1 (en) |
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|---|---|---|---|---|
| US5536259A (en) | 1995-07-28 | 1996-07-16 | Medisystems Technology Corp | Hypodermic cannula |
| JP3310270B1 (en) * | 2001-03-28 | 2002-08-05 | 宮子 鎌田 | Medical injection needle and method of manufacturing the same |
| JP2002306606A (en) * | 2001-04-18 | 2002-10-22 | Asahi Optical Co Ltd | Endoscope puncture device |
| ES2185500B1 (en) * | 2001-09-14 | 2004-11-16 | Pedro Acha Gandarias | CATHETER AND METHOD OF USE. |
| US6830562B2 (en) | 2001-09-27 | 2004-12-14 | Unomedical A/S | Injector device for placing a subcutaneous infusion set |
| ITTO20011228A1 (en) | 2001-12-28 | 2003-06-28 | Cane Srl | DISPOSABLE NEEDLE CONTAINER. |
| ATE424228T1 (en) | 2004-03-26 | 2009-03-15 | Unomedical As | INFUSION SET |
| US8062250B2 (en) | 2004-08-10 | 2011-11-22 | Unomedical A/S | Cannula device |
| US7867199B2 (en) | 2004-12-10 | 2011-01-11 | Unomedical A/S | Inserter |
| US7985199B2 (en) | 2005-03-17 | 2011-07-26 | Unomedical A/S | Gateway system |
| DE602005023458D1 (en) | 2005-09-12 | 2010-10-21 | Unomedical As | A delivery system for an infusion set having first and second spring units |
| DK1962925T3 (en) | 2005-12-23 | 2009-08-03 | Unomedical As | Delivery Device |
| KR20080104342A (en) | 2006-02-28 | 2008-12-02 | 우노메디컬 에이/에스 | Injection part with needle guard and insert for injection part |
| KR20090026760A (en) | 2006-06-07 | 2009-03-13 | 우노메디컬 에이/에스 | Injector |
| US8790311B2 (en) | 2006-06-09 | 2014-07-29 | Unomedical A/S | Mounting pad |
| CN101500627B (en) | 2006-08-02 | 2012-03-14 | 优诺医疗有限公司 | Cannula and delivery device |
| EP1917990A1 (en) | 2006-10-31 | 2008-05-07 | Unomedical A/S | Infusion set |
| MX2009013207A (en) | 2007-06-20 | 2010-01-25 | Unomedical As | A catheter and a method and an apparatus for making such catheter. |
| EP2185224A1 (en) | 2007-07-03 | 2010-05-19 | Unomedical A/S | Inserter having bistable equilibrium states |
| ATE499128T1 (en) | 2007-07-10 | 2011-03-15 | Unomedical As | INSERTER WITH TWO SPRINGS |
| NZ582226A (en) | 2007-07-18 | 2011-12-22 | Unomedical As | Insertion device with a pivoting action from a first to a second position and longitudinal action to a third position in the direction of insertion. |
| RU2010137844A (en) | 2008-02-13 | 2012-03-20 | Уномедикал А/С (Dk) | SEAL BETWEEN THE CANULE PART AND BY PASSING A FUEL |
| MX2010009087A (en) | 2008-02-20 | 2011-05-03 | Unomedical As | Insertion device with horizontally moving part. |
| US11298113B2 (en) | 2008-10-01 | 2022-04-12 | Covidien Lp | Device for needle biopsy with integrated needle protection |
| US9186128B2 (en) | 2008-10-01 | 2015-11-17 | Covidien Lp | Needle biopsy device |
| US8968210B2 (en) | 2008-10-01 | 2015-03-03 | Covidien LLP | Device for needle biopsy with integrated needle protection |
| US9782565B2 (en) | 2008-10-01 | 2017-10-10 | Covidien Lp | Endoscopic ultrasound-guided biliary access system |
| US9332973B2 (en) | 2008-10-01 | 2016-05-10 | Covidien Lp | Needle biopsy device with exchangeable needle and integrated needle protection |
| PL2384217T3 (en) | 2008-12-22 | 2021-08-02 | Unomedical A/S | Medical device comprising adhesive pad |
| CN102470211B (en) | 2009-07-30 | 2014-05-07 | 犹诺医药有限公司 | Inserter device with horizontal moving part |
| EP2461853B1 (en) | 2009-08-07 | 2016-03-30 | Unomedical A/S | Delivery device with sensor and one or more cannulas |
| CN102844060A (en) | 2010-03-30 | 2012-12-26 | 犹诺医药有限公司 | Medical device |
| JP5653655B2 (en) * | 2010-06-02 | 2015-01-14 | 旭化成メディカル株式会社 | Puncture needle and blood vessel surface notch forming device |
| EP2433663A1 (en) | 2010-09-27 | 2012-03-28 | Unomedical A/S | Insertion system |
| EP2436412A1 (en) | 2010-10-04 | 2012-04-04 | Unomedical A/S | A sprinkler cannula |
| EP2763723B1 (en) | 2011-10-05 | 2016-04-13 | Unomedical A/S | Inserter for simultaneous insertion of multiple transcutaneous parts |
| EP2583715A1 (en) | 2011-10-19 | 2013-04-24 | Unomedical A/S | Infusion tube system and method for manufacture |
| US9440051B2 (en) | 2011-10-27 | 2016-09-13 | Unomedical A/S | Inserter for a multiplicity of subcutaneous parts |
| US10182798B2 (en) | 2014-07-30 | 2019-01-22 | Covidien Lp | Exchangeable core biopsy needle |
| US10159470B2 (en) | 2014-07-30 | 2018-12-25 | Covidien Lp | Exchangeable core biopsy needle |
| US9844362B2 (en) | 2015-01-13 | 2017-12-19 | Covidien Lp | Exchangeable core biopsy needle |
| RU2611910C1 (en) * | 2015-12-30 | 2017-03-01 | Эрик Григорьевич Азизян | Suture material for cosmetic operations |
| EP3661582A4 (en) * | 2017-08-04 | 2021-05-05 | Becton, Dickinson and Company | Method and apparatus for introducing a needle for catheter placement |
| JP7351843B2 (en) * | 2018-09-19 | 2023-09-27 | テルモ株式会社 | catheter assembly |
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|---|---|---|---|---|
| SE135689C1 (en) * | ||||
| DE346472C (en) * | ||||
| US2187259A (en) * | 1936-07-11 | 1940-01-16 | George E Barnhart | Hypodermic needle |
| US2524713A (en) * | 1949-08-20 | 1950-10-03 | Nicholas P Plechas | Vein fixator |
| US2601580A (en) * | 1951-01-24 | 1952-06-24 | Bronislow J Yanus | Hypodermic needle |
| DE1927868C3 (en) | 1969-05-31 | 1975-06-05 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Device for the precise and rapid location of blood vessels or the like and for the accurate insertion of an injection cannula into these vessels |
| DE2005519A1 (en) * | 1970-02-06 | 1971-10-28 | Roescheisen & Co Süddeutsche Bindenfabrik, 7900 Ulm | Hypodermic syringe needle |
| JPS5528274Y2 (en) * | 1978-05-18 | 1980-07-05 | ||
| US4368730A (en) * | 1981-02-12 | 1983-01-18 | Nigel Sharrock | Intravenous catheter |
| US4642101A (en) * | 1985-05-16 | 1987-02-10 | Krolikowski F John | Non-traumatic bulbous catheter |
| US4808170A (en) * | 1985-12-16 | 1989-02-28 | Alcon Laboratories, Inc. | Hypotraumatic injection needle useful in ophthalmic surgery |
-
1990
- 1990-09-07 NO NO903910A patent/NO173261C/en unknown
-
1991
- 1991-07-24 DE DE69122401T patent/DE69122401T2/en not_active Expired - Fee Related
- 1991-07-24 AU AU83197/91A patent/AU8319791A/en not_active Abandoned
- 1991-07-24 CA CA002091270A patent/CA2091270A1/en not_active Abandoned
- 1991-07-24 FI FI930985A patent/FI930985A7/en unknown
- 1991-07-24 RU RU93004980A patent/RU2114640C1/en active
- 1991-07-24 ES ES91914242T patent/ES2091938T3/en not_active Expired - Lifetime
- 1991-07-24 DK DK91914242.2T patent/DK0547068T3/en active
- 1991-07-24 AT AT91914242T patent/ATE143271T1/en not_active IP Right Cessation
- 1991-07-24 WO PCT/NO1991/000104 patent/WO1992004062A1/en not_active Application Discontinuation
- 1991-07-24 EP EP91914242A patent/EP0547068B1/en not_active Revoked
- 1991-07-24 JP JP3513270A patent/JP2554299B2/en not_active Expired - Lifetime
-
1996
- 1996-10-09 GR GR960402643T patent/GR3021281T3/en unknown
-
1997
- 1997-04-17 HK HK51297A patent/HK51297A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU8319791A (en) | 1992-03-30 |
| NO903910L (en) | 1992-03-09 |
| FI930985L (en) | 1993-04-06 |
| ES2091938T3 (en) | 1996-11-16 |
| WO1992004062A1 (en) | 1992-03-19 |
| JPH06502776A (en) | 1994-03-31 |
| NO903910D0 (en) | 1990-09-07 |
| NO173261C (en) | 1993-11-24 |
| FI930985A7 (en) | 1993-04-06 |
| NO173261B (en) | 1993-08-16 |
| DE69122401T2 (en) | 1997-02-20 |
| EP0547068A1 (en) | 1993-06-23 |
| EP0547068B1 (en) | 1996-09-25 |
| DE69122401D1 (en) | 1996-10-31 |
| GR3021281T3 (en) | 1997-01-31 |
| JP2554299B2 (en) | 1996-11-13 |
| DK0547068T3 (en) | 1996-11-11 |
| RU2114640C1 (en) | 1998-07-10 |
| FI930985A0 (en) | 1993-03-05 |
| ATE143271T1 (en) | 1996-10-15 |
| HK51297A (en) | 1997-04-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 20000724 |